Q:what materials can make external wall fireproofing paint have the fireproofing effect

First, the width of fire barrier is greater than 30CM, and the thickness should be same to the thickness of insulation material. fire barrier zone insulation board must do the whole area sticking construction with the base wall during the construction. fire barrier zone insulation board is required to assistant binding by anchor bolt, anchor bolt must suppress the underlying mesh. fire barrier zone should be set at the upper position of door and window openings, the distance between the low edge of isolation belt and the upper edge of the window must be less than 50cm. When the fire barrier zone is set on the edge of the window, fire barrier zone at the upper part of the window should do flanging when sticking, flanging glass fiber mesh must exceed 10CM than firebreak insulation board. flanging network, underlying network and surface network can not be overlapped or butted at the top of the window. the thermal resistance of fire barrier zone must be half than EIFS thermal resistance in the cold northern areas, while the thermal resistance of fire barrier zone must be three times than EIFS thermal resistance in the hot summer and cold winter area. Cement foam insulation board is recommended to use as external insulation board materials, level A exterior wall cement foam insulation board is a new ultra-lightweight thermal insulation material, with the advantages of lightweight concrete and insulation performance, with characteristics of low production costs, simple process, easy to operate, small product density in 180250kg / m3, high strength, low water absorption and good insulation properties, thermal conductivity of 0.05 ~ 0.07W / m · K and level A non-combustible; it is suitable for external wall insulation and fire isolation belt, and can meet the urgent needs of the market of exterior thermal insulation. With the increase of the intensity of the building fireproofing, the products will become the leading products in building insulation market in the future.

Q:How is grade of fire endurance divided?

Fire resisting shutter is divided into Class A / B / C, and the relevant fire endurance are not less than 1.2 /0.9 /0.6 hours, see "General technical conditions for steel fire resisting shutter GB 14102-93". 4.3 4.3.1 Classification according to time of fire resistance 4.3.1 Ordinary steel fire resisting shutter (see Table 3) Table 3 and Category Code Refractory time hF1 1.5F2 2.04.3.2 Composite steel fire resisting shutter (see Table 4). Table 4 and Category Code Refractory time hF3 2.5F4 3.04.4 Classification according to refractory time and smoke prevention performance 4.4.1 Ordinary steel fire and smoke resisting shutter (see Table 5) Table 5 category and code refractory time h smoke leakage (20Pa differential pressure) FY1 1.5 ≤0.2m3 / m minFY2 2.0 ≤0.2m3 / m min4.4.2 composite steel fire and smoke resisting shutter (see table 6) table 6 category and code refractory time h smoke leakage (20Pa pressure) FY3 2.5 ≤0.2m3 / m minFY4 3.0 ≤0.2m3 / m min Excerpt completed. Fire shutter used as fire compartment has a fire resistance of 3 hours, and fire shutter set on the upper opening part on the firewall has a fire resistance of 1.2 hours. **** Materials with fire resistance of 3.0 hours are called AAA refractory material (back fire surface). "Building Conventions" have mentioned in places where it is really difficult to set a firewall, fire shutters can be used to separate fire compratment. When using fire shutters whose back surface temperature rise is included as the judging criteria of fire resistance, its fire resistance should be not less than 3.00h; When using fire shutters whose back surface temperature rise is not included as the judging criteria of fire resistance, independent protection of closed automatic water spraying system should be set on the both sides of the shutter, and the duration of water spray should be not less than 3.00h. In summary: Fire shutter is divided into: Grade AAA, A, B and C

Q:what is best for making refractory insulation for Blast furnace, hot stove.

High dimensional insulating blanket.

Q:How to choose thermal insulation materials for flood heating?

How to choose the appropriate thermal insulation materials: 1, Thermal insulation material shall have a small thermal conductivity, good thermal insulation properties. Besides, that also depends on whether the specific temperature changes of in the insulation materials' working environment can ensure the material has good thermal insulation. 2, when purchasing, we must be make sure it is light, and loose enough. These heat insulating material can not only afford bracket, and can also increase the heat transfer performance of the heat insulation material. prevet water penetration. Waterproof function should be soild, even if it accidentally absorbs water, its thermal insulation function must be guaranteed. 3, None of the organic material should applied to production of insulation materials, Thermal insulation material containing organic matter may get rotten, mildewed, and cause other destructive . At the same time they should not contain flammable substances, in order to avoid the fire. I hope my answer can help you

Q:What is the fire resistance thickness of the thin fire-retardant coatings?

There is no detailed requirement on the thickness of the thin steelwork fireproof coatings and the thickness there refers to a certain thickness which must(at least) have fire resistance for a certain time. The thickness of fireproof coatings in engineering generally depends on the manufacturer's test reports. Our thin steelwork fireproof coatings: the fire resistance is 2.5 hours, the thickness is 4.9 mm, the fire resistance is 2.0 hours, the thickness is 3.5 mm, the fire resistance is 1.5 hours, the thickness is 1.75 mm, the fire resistance is 1.0 hours, the thickness is 1.17 mm.

the classes are different. class A window not less than 1.5 hours, and the time is short, class B window not less than 1 hours, with shorter time, Class C window not less than 0.5 hours.

Q:What does refractory mean?

What is refractory material?Refractory material generally refers to the inorganic refractory degree over 1580oC non metallic materials. It includes natural ore and various products in accordance with certain requirements after a certain process. With the volume stability of high temperature mechanical properties, a good, is the necessary equipment for all kinds of high temperature materials.

Q:What is the importance of silicon powder in refractory processing?

it depends on the type of refractory material, in addition to lS friends talked about, in the amorphous mobility\ strength should also have an impact